Surfactant-polymer composition and method of enhanced oil recovery

Patent · Tue Dec 31 00:00:00 EST 1991

OSTI ID:5594397

Kalpakci, B; Arf, T G

This patent describes a method for recovering oil from a subterranean formation. It comprises containing an aqueous concentrate or a dry or substantially dry composition with water to form an aqueous composition, the concentrate or dry or substantially dry composition comprising: at least on compound represented by the formula RO-(R{prime}){sub n}R{double prime} X{sup {minus}}Y{sup +} wherein: R is a hydrocarbyl group of from about 6 to about 24 carbon atoms; R{sup {prime}} is ethoxy, propoxy or a mixture thereof; R{double prime} is a divalent hydrocarbyl group of 1 to about 20 carbon atoms; X is a sulfate, sulfonate or carboxylate group; Y is a cation; and n is a number in the range of 1 to about 20; at least on polymeric thickener; and at least one aldehyde; the aqueous composition comprising from about 0.05% to about 1.2% by weight from about 0.02% to about 0.3% by weight and from about 0.005% to about 1% by weight, injecting the aqueous composition into the formation and displacing the oil toward one or more production wells.

• Assignee: Standard Oil Co., Cleveland, OH (United States)
• Patent Number(s): US 5076363; A
• Application Number: PPN: US 7-667195
• OSTI ID: 5594397
• Resource Relation: Patent File Date: 11 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
HYDROCARBONS
RECOVERY
POLYMERS
CHEMICAL COMPOSITION
SURFACTANTS
AQUEOUS SOLUTIONS
CARBOXYLATION
OIL WELLS
PETROLEUM
SUBTERRENE PENETRATORS
WATER
CHEMICAL REACTIONS
DISPERSIONS
DRILLING EQUIPMENT
DRILLS
EARTH PENETRATORS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PENETRATORS
SOLUTIONS
WELLS
040500* - Oil Shales & Tar Sands- Properties & Composition
040401 - Oil Shales & Tar Sands- In Situ Methods
True & Modified